58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
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// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package mysql
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import (
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"io"
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"context"
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"database/sql"
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"github.com/abcum/surreal/kvs"
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)
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type DB struct {
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pntr *sql.DB
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}
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func (db *DB) Begin(ctx context.Context, writable bool) (txn kvs.TX, err error) {
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var pntr *sql.Tx
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if pntr, err = db.pntr.BeginTx(ctx, db.opt(writable)); err != nil {
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err = &kvs.DBError{Err: err}
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return
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}
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return &TX{pntr: pntr}, err
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}
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func (db *DB) Import(r io.Reader) (err error) {
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return nil
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}
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func (db *DB) Export(w io.Writer) (err error) {
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return nil
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}
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func (db *DB) Close() (err error) {
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return db.pntr.Close()
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}
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func (db *DB) opt(writable bool) *sql.TxOptions {
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return &sql.TxOptions{
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ReadOnly: !writable,
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Isolation: sql.LevelReadCommitted,
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}
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}
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